Table 2. Seroprevalence of Toxoplasma infection among rural individuals in Northern Iran according to sociodemographic characteristics (estimated by a full logistic regression model).

Characteristic	No. of participants	OR	95% CI	p value
Age (years)
≤10	18	1.00*	1.0
11-20	60	3.04	(0.90- 10.23)	0.73
21-30	141	11.35**	(3.19- 40.34)	<0.001
31-40	124	13.31**	(3.62- 48.97)	<0.001
41-50	112	14.04**	(4.02- 49.00)	<0.001
51-60	109	17.80**	(4.89- 64.76)	<0.001
≥61	66	11.71**	(2.86- 48.00)	<0.001
Educational level
Illiterate	158	1.00*	1.0
Primary school	143	1.25	(0.57- 2.78)	0.577
High school	234	0.67	(0.30- 1.49)	0.326
College and higher	95	0.44	(0.16- 1.17)	0,099
Occupation
Farmer & shepherd	57	1.00*	1.0
Housewife	312	1.51	(0.65- 3.49)	0.337
Student	99	3.28**	(1.13- 9.53)	0.029
Government employee & other	162	1.05	(0.42- 2.62)	0.915
Water supply				0.497
Treated	272	1.17	(0.75- 1.81)
Untreated	358	1.00*
Consumption of undercooked or raw meat				0.004
Yes	386	0.52**	(0.33- 0.81)
No	244	1.00*
Consumption of raw unwashed vegetables or fruits				0.005
Yes	322	0.53**	(0.34- 0.82)
No	308	1.00*
Contact with soil				0.119
Yes	317	0.72	(0.48- 1.09)
No	313	1.00*
Consumption of sheep meat				0.218
Yes	540 (84)	0.71	(0.42- 1.22)
No	90 (16)	1.00*
Consumption of poultry meat				0.889
Yes	564 (89.5)	0.96	(0.51- 1.80)
No	66 (10.4)	1.00*

* Reference. ** 95% confidence interval does not include 1.